netdev - Re: [PATCH 2/4] net: use numa_node in net

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Message-ID: <20070704085120.GB19515@infradead.org>
Date:	Wed, 4 Jul 2007 09:51:20 +0100
From:	Christoph Hellwig <hch@...radead.org>
To:	Yinghai Lu <Yinghai.Lu@....COM>
Cc:	Stephen Hemminger <shemminger@...ux-foundation.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Andi Kleen <ak@...e.de>, Greg KH <greg@...ah.com>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	netdev@...r.kernel.org
Subject: Re: [PATCH 2/4] net: use numa_node in net_devcice->dev instead of parent

On Tue, Jul 03, 2007 at 05:30:51PM -0700, Yinghai Lu wrote:
> [PATCH 2/4] net: use numa_node in net_devcice->dev instead of parent
> 
> Signed-off-by: Yinghai Lu <yinghai.lu@....com>
> diff --git a/net/core/skbuff.c b/net/core/skbuff.c
> index 27cfe5f..005cc1c 100644
> --- a/net/core/skbuff.c
> +++ b/net/core/skbuff.c
> @@ -217,7 +217,7 @@ nodata:
>  struct sk_buff *__netdev_alloc_skb(struct net_device *dev,
>  		unsigned int length, gfp_t gfp_mask)
>  {
> -	int node = dev->dev.parent ? dev_to_node(dev->dev.parent) : -1;
> +	int node = dev_to_node(&dev->dev);

This looks wrong to me unless the device model has once again changed
silently.  When I wrote this code &dev->dev was a device allocated
as part of the netdevice and the parent is the pci (or whatever) device
that has the node information.

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